How we help you keep your computer and device clean

While some criminals might be after your information, like your bank account details,
email inbox or online passwords, others may be looking to take control of your device –
your computer, tablet or phone.

Criminals can then use your device to find other devices that they can control. They
often use armies of computers to knock websites offline or breach their security
systems.

One of the top ways that criminals can take control of your computer is by installing
malicious software, or malware. You can help protect your
computer from malware, but Google also works hard to help protect you too, with
hundreds of security experts working around the clock to help ensure your data and
devices are secure.

Helping you avoid malware

Just like Google searches the web for sites with the best answers to your questions, we
also look for sites that appear to be harmful to users or have malware on them. Every
day we identify and flag more than 10,000 of those unsafe sites, and we show warnings
on as many as 14 million Google Search results and 300,000 downloads, telling our users
that there might be something suspicious going on behind a particular website or link.

We also use the same technology to help identify if someone is sending you a message in
Gmail that might be harmful or have malware, and to warn you if you try to download
something from a website that might look like a ringtone or a PDF, but secretly
contains code that could harm your computer.

Even if you do go to a page with malware, Google’s engineers have built additional
defenses into the Chrome browser that help prevent malware from installing itself on
your computer, and minimize the impact of malware on your computer.

Helping you stay up to date

One way that criminals sometimes gain access to your computer is by looking for known
security problems in old versions of software that is running on your device. They know
that many people don’t always update to the latest version of their computer software
and programs, which has the best security protections. Google knows this too, which is
why we built the Chrome browser to auto-update to the latest version every time you
start it up, so you can get up-to-date security protection without any extra work.

Chrome sometimes has to work with other software, called plug-ins, to do things like
show pictures or video properly. These plug-ins can also be a way for criminals to gain
control of your computer. If Chrome detects an out-of-date plug-in with a security
problem, it will block that plug-in until you have the most up-to-date and secure
version and show you a message telling you the plug-in needs to be updated.

Helping you keep your mobile device safe

Smartphones running Google’s Android software have similar protections in place to
reduce the risk of damage.

Android also requires that every app in the Google Play store list what kind of
information the app wants to collect or access from your device, so you can decide
whether you trust the app or not. We also automatically scan Google Play to block and
remove harmful apps, and for some Android phones, our Google Application Verifying
Service will check for potentially harmful applications no matter where you are
installing them from. So, if you install applications from unknown sources like the web
or a third party app store, this free service will provide you with another layer of
security.